Check Valves

Engineered for ultimate reliability in high-pressure systems, Frigate Check Valves (NRV) deliver precise backflow prevention across critical industrial applications. Available in diverse configurations including ball seat, spring-loaded, and piston types, our valves ensure uninterrupted unidirectional flow up to 20,000 psi.

Surface Finish & Treatment

Electro-polished and passivated finish for enhanced corrosion resistance and aesthetics

Maximum Pressure Rating

Up to 20,000 psi

Standard Cracking Pressure

1.5 kg/cm²

Size Range

1/4″ to 2″

Material of Construction (M.O.C)

CS, AS, SS, DSS, SDSS, SASS, Monel, Hastelloy, Inconel, Titanium, Tandulam, Brass

Order Type

Quantity Range

Lead Time*

Standard Inventory

1 – 50 units

3 to 5 Business Days

Bulk Production

51 – 500 units

2 to 4 Weeks

Custom M.O.C / Specialized

501+ units / Custom Specifications

6 to 8 Weeks

*Delivery timelines are indicative ranges based on current raw material availability. Actual schedules will be confirmed at the time of official order placement.

Product Description

Frigate Check Valves are meticulously manufactured from premium materials like Stainless Steel, Hastelloy, and Titanium to withstand extreme industrial environments. Featuring a standard cracking pressure of 1.5 kg/cm², these high-integrity valves offer leak-tight sealing and exceptional durability for both standard and high-pressure operations.

End Connection Types Available

NPT, BSP, BSPT, Tube OD, Socket Weld (SW)

Thread Configurations

Male x Female (M x F), Female x Female (F x F), Male x Male (M x M)

Specialized Thread Configuration

Tube OD x Male (OD x M)

Base Models Available

Ball Seat Type , Piston Type

Spring Load Models

M x F, F x F, High Pressure, OD Type, M x M, OD x M

Flow Direction

Unidirectional (indicated by a permanent directional arrow stamped on the valve body)

Seat & Seal Options

Metal-to-Metal, PTFE, FKM (Viton), or PEEK depending on media and temperature requirements

Operating Temperature Range

-29°C to 232°C (-20°F to 450°F) for standard elastomeric/fluoropolymer seals

Factory Testing Standards

100% pressure tested for crack and reseal performance integrity

Body Construction Type

Robust hex bar stock body optimized for high torque resistance during installation

Nominal Valve Size (inches)

Stem Diameter (mm)

Body Height (mm)

Total Component Length (mm)

1/4″

6.35

1/2″

12.70

1″

25.40

115

2″

50.80

160

Technical Advantages

By utilizing advanced spring-loaded and piston mechanisms, Frigate Check Valves minimize pressure drops while providing an instantaneous, bubble-tight shutoff against reverse flow. Their robust Material of Construction (M.O.C) options and versatile end connections ensure seamless integration and reduced maintenance costs in severe-service piping systems.

Compliances

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Industry Application

Oil & Gas Refining

Ensures safe unidirectional flow in high-pressure upstream and downstream pipelines, preventing hazardous backflow of crude and refined hydro-carbons.

Chemical Processing

Provides exceptional corrosion resistance in lines carrying aggressive media, utilizing specialized M.O.C like Hastelloy and Titanium.

Power Generation

Maintains system integrity within boiler feed-water and steam distribution networks by preventing thermal shock and pressure surges.

Aerospace & Defense

Delivers ultra-reliable fluid control under extreme vibration and pressure conditions up to 20,000 psi in critical test rigs.

Marine & Offshore

Withstands severe maritime environments and saltwater exposure using robust Super Duplex Stainless Steel and Monel valve bodies.

Water & Wastewater

Prevents water hammer and protects high-capacity pumps from reverse flow damage in industrial water treatment facilities.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

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Units Manufactured Monthly

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Defence-Grade Cable Supply

Cost savings

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Flange Assembly for Pump

Faster Production

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Having Doubts? Our FAQ

What is the standard cracking pressure for Frigate Check Valves?

Our standard check valves are engineered with a cracking pressure of 1.5 kg/cm², ensuring a swift and reliable opening response when forward flow is initiated.

Can these check valves handle high-pressure hydraulic applications?

Yes, the Frigate High Pressure – Spring Load Type and related configurations are rated to operate safely in environments up to 20,000 psi.

What end connection options do you offer for integration?

To fit various piping architectures, we offer NPT, BSP, BSPT, Tube OD, and Socket Weld (SW) end connections across male and female configurations.

Are custom materials available for highly corrosive chemical environments?

Absolutely. We manufacture valves in a wide array of specialized materials including Monel, Hastelloy, Inconel, Titanium, and Super Duplex Stainless Steel.

Do you provide material test certificates (MTC) with these valves?

Yes, all Frigate valves are supplied with EN 10204 3.1 Material Test Certificates ensuring complete traceability of the raw materials, along with physical testing and pressure compliance reports.

We'd love to Manufacture for you!

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Components Built for Critical Performance

Engineered Products for Critical Applications

Check Valves

Order Type

Quantity Range

Lead Time*

Product Description

End Connection Types Available

Thread Configurations

Specialized Thread Configuration

Base Models Available

Spring Load Models

Flow Direction

Seat & Seal Options

Operating Temperature Range

Factory Testing Standards

Body Construction Type

Nominal Valve Size (inches)

Stem Diameter (mm)

Body Height (mm)

Total Component Length (mm)

Technical Advantages

Compliances

Let's Get Started

Industry Application

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Check Valves

Get Latest Price

Check Valves

Get Latest Price